Purification of liquids.



A. H. WILLIAMS. PURIFICATION OF LIQUIDS. APPLICATION mum M11122, 1909.

966,608, Patented June 7, 1910.

Zmw $55) $5. Xmx mum:

I ED STATES PATENT OFFICE,

3 ALB RT n-wnmmms, or JERSEY our, NEW JnnsEY.

rumricarion or mourns.

To till whom it may concern:

Be it known that I, ALBERT E. WILLIAMS,

a citizen oftheUnited States, residing in Jersey City, Hudson-county, and State of" 5 New Jersey, have invented-certain new and.

useful Improvements in the Purification of Liquids, of which the following is a specificationr My improvements relate to the purification of fluids, as oils, water, and other liq- -uids holding solid or scmi solid matter in sus ension or solution, particularly sewage,

an the invention consists in the combination and arran ement of parts hereinafter.

sectional elevation of apparatus suitable for the practical application of my invention; Fig. 2, is a diagrammatic representation of one of the electric screens used.

Although the essential features of my invention are applicable for the purification of various liquids, oils &c., by way of illustration, I herein show and describe myimprovements as adapted to the trcatment'and purification of sewage.

It, represents a receiving chamber into which the sewage passes from the inlet 40 pipe I, thelatter being provided with rollers 1', i, which reduce the thicker constituents of the sewage to a pulp, thereby rendering the mass more amenable to subsequent treatmcnt. The upper portion of the receiving chamber R, is divided centrally, or approximately so. by a partition 7', extending downward a sufiicient distance to insure the passage of the sewage within the magneticinfluence of the drain pipes D, I), as thosewage flows toward the inverted corneal filter F. The drain pipes D,'

Specification of Letters Iatent. Patented J 7, 1910.v Application liled flarch 22, 1909. Serial NO. 485,085.

D, are practically the hollow poles of the electromagnets M, the pipes'bemg made of wrought iron wound Witlrcopper wire of sufiicient size and number of ampere turns;

The pipes D, D, are connected mechanically but not magnetically, by the crossbar m which simply represents a means of support. Below the magnets M, the discharge pipes D, D, are provided with discharge gates or valves d, d; and. their receiving'ends. d, d,

are flared, preferably, and insulated (as indicated by' m, w,) from the body of the receiving tank R. 1

A, represents symbolically-a dynamo or other source of direct electricalcurrent, and

a, the regulator and fieldL' The windings of;

the electro-magnets M, M, are include'd'in the electric circuitl and 2, which, whenclosed causes the magnets to exert a powerful andlntense attractive force 11 on'paramagnetic substances contained in t 1e matter held in suspension 'in the sewage. It is well known that efi'ete animal'matter contains.

more or less iron and other metallic substances, as well as metallic salts and oxids which are paramagnetic, and matter holding such paramagnetic substances, even in relatively small proportions, I deflect and draw to the bottom of the receiving chamber R,

bymeans of the magnets M, M, when in circuit. The diamagnetic solid or semi-solid matter I separate from the sewage by mechanical means, that is to say by straining.

The filter or strainer F, is preferably of inverted conical shape supported upon the .top of the receiving tank R, and covering the outlet 0, which communicates through the transfer pi pc T, with the supplementary tank or chamber S. T his conical strainer If, is preferably made of fine copper wire woven' in cloth, so as to exclude and hold back practically all solid matter, only the residual matter held in solution passing over to the *lsupplcmentary chamber S. The supplementary chamber S is provided with a series of transverse screens s, sf-these screens being also preferably inade of fine copper wire sorted in porcelain frames s', s', or otherwise, and are firmly secured in position parallel to each other and interposed between the inlet .9 and the discharge '8; A drain" sixth and eighth screens are connected ivith the negative terminals 4? from the loo 4, of

the electric circuit 34 of which t e dynamo A, or other source of direct electrical current formsa part.

In practice, the sewa e in the receivin chamber R, in flowingtot escreen o'r filter is forced by the partition 1', to pass within the intense magnetic influence of the magnetsM, M, acting through the medium of the drain pipesD, D,'so that substances held in suspension and containing paramagnetic matter, are drawn to the bottom of the res ervoir R, while the insoluble diama netie' matter which passes over is arrested andlis'ld back by thescreen. F, which as before stated only allows matter heldin solutionto pass through the transfer pipe T into the supplementary chamber S, where soluble matter is rendered insoluble and precipitated bythe action of the screens 8, s,the electrically.

' positive screens causih the eneration of hydrogen and the e ectrica y negative screens causing the generation of oxygen, so that by the time the liquid has. passed through the series of screens, matter previously held in solution is reduced, precipitated and eliminated from the final dis- 40 charge of water passing through the exit a. The precipitates are removedfrom time to time through the valves p p a In the operation of discharging the contents of the receiving chamber R, throu h the valves (1, d, the inverted conical filter is cleansed automatically by reason of the back pressure and flow incidental to the height of the water level 10, indicated in Fig. 1,-'this 'cleansin operation being facilitated and rendered most efi'ectiv'e by Eeason of the inverted conical shape of the lter.

It will be seen that I not only purify the liquid by eliminating both solids and soluble matter, but I also in the process separate and segregate the grades of material eliminated.

lVhen operating upon a small scale a single electromagnct M, may be sufficient but I prefer ordinarily to use a plural number. What I claimas my invention-and desire to secure by Letters Patent is,

1. In apparatus of the charactcrdescribcd, thecombination of a receiving chamber, an

electromagnet at the bottom of said r'cceiwing chamber, means for exciting said mag net electrically, means for -'lischargin from the bottom of,said receiving cham er, a. strainer in the upper part of said receiving chamber, .means forcpnducting the liquid, passing throu h said rainer to a su plementary cham r, said supplementary cham-" her, a series of screens in said sup lementary chamber the alternate mem ers of whlch are respectively connected with electropositiveand electronegative terminals of 'angelectric circuit, and means for discharging the liquid and the precipitates separately fromsaid supplementary chamber, substantially in"the manner and for the pur- 'pose described.

2. Inapparatus of the character described, the combination of "receiving chamber, a pluralityof electromagnets at the bottom of the receiving chamber, means for exciting said magnets electrically, means for discharging from the bottom of said receivin chamber a' strainer in the upper part of 'said receiving chamber, means for conducting the liquid passingthrough said strainer to a supplementary chamber, said supplementary chamber, a series of screens in said supplementary chamber the alternate members of which are res ectively connected wit-h electropositive an electronegativc terminals of anelectric circuit, and means for dischar ing the liquid and the precipitates separate y from said supplementary chamber, substantially in the mariner and for the purpose de scribed.

3. In apparatus of the character described,

'the combination of a receiving chamber, an

electromagnet at the bottom of said chamber formed with a hollow pole constituting a discharge pipe, a valve in said discharge pipe, means for exciting said magnet electrically, a strainer in the upper part of said receiving chamber, means for conducting the liquid passing through said strainer to a supplementary chamber, said supplementary 110. chamber, a series of screens in said supple-. mentary chamber, the alternate members of which are respectively connected with electropositive and electronegative terminals of an electric circuit, and means for discharging the liquid and the precipitates separately from said supplementary chamber, substantially in the manner and for the purpose described.

4. In apparatus of the character described, 1 0 the combination of'a receivin chamber, a plurality of electromagnets at t e'bottom of said chamber formed with hollow poles co n stituting discharge pipes, valves in Sald-d1S charge pipes, means for exciting said magnets-electrically, a strainer in the upper part of said receiving chamber, means, for conducting the liquid passing through said;

p her v 2 arately fromsaid supplementary chamsubstantially in the manner and for the purpose described.

lVitnesses ALBERT E. WILLIAMS;

D. W. GARDNER, G120. WM.'MI'ATT. 

